Comments by UT7 (Top 60 by date)

@Dave Kreskowiak, thanks a lot. I already have a while loop solution but I wanted to see if it can also work with a for loop.
String str = "hello from lagos";
String guess = "l";
int index = str.indexOf(guess);
while(index >= 0) {
System.out.println(index);
index = str.indexOf(guess, index + 1);
}
Thanks a lot.

@OriginalGriff Got it! Thanks a lot.

@OriginalGriff, okay, thanks a lot. I'm grateful

@OriginaGriff, thanks for your response but I taught that Integer (wrapper class) wraps a primitive data type into objects and objects are located on the heap ? Please clarify. Thanks.

@OriginalGriff, thanks a lot, I'm grateful. Got it.

@FreedMalloc, sorry for the late response. Thanks a lot for your answer, got it.

@FreedMalloc thanks a lot, it worked ! Thank you.

@Wendelius thanks a lot. Yeah, I sort of figured it out. I added an index to tool_id in the tools table --> INDEX idx_tool_id (tool_id). I dropped the tools table and recreated it with the modification above and it worked. Thanks a lot for your help, I am very grateful.

@Wendelius, I changed the tool_id in the location table to BIGINT(11) but it didn't work, I still have the error. I wonder what "missing index constraint means" ? This seems to be the problem. Thanks for your help.

@Wendelius thanks for your response. Sorry I changed the name of the database from flex to wax before I posted this question, so I've edited the question. Thanks a lot.

@Member 15579602 - Yeah, I figured it out, thanks a lot.

@Dave Kreskowiak, okay I'll give it a try, thanks a lot.

Okay, noted. Thanks.

@Dave Kreskowiak, thanks a lot for your response. I'll try and see if I can figure it out. Thanks again.

@Rick York, thanks a lot.

@Richard Deeming, thanks for your response. I've done what was suggested in the issues post but it didn't work. All I need is the python command to install 'spconv version 1.2.1' into Google Colab notebook and the test would run. I've also done a Google search but it didn't give me any solution, thanks.

@Richard Deeming, thanks for your response. It's Tomcat that is leading me to the wrong URL. I ran my servlet from Eclipse using the Tomcat server and it directs/leads me to the wrong URL.

@CHill60, those articles are very good, it didn't solve my issue directly but it is very helpful. Thanks a lot.

Wow, thanks a lot. I'll read the articles, thanks.

"USE INDEX" is there, please check. Thanks.

I want to show situations where this index would be ineffective searching the database. Thanks.

@Richard MacCutchan, sorry for my late response, thanks a lot.

Yes, it worked!!!! @Richard MacCutchan, it worked!!!!. @Richard MacCutchan, @Sanddeep Mewara, sorry I haven't been available for the past 48 hours due to some personal reasons. I'm very, very grateful for your help, time and patience. Javacc is working. Thank you.

@Richard MacCutchan, @Sandeep Mewawa,

Hello Guys, this is the javacc file's content in my downloads directory.
Is this the directory that I'm to rename as javacc.jar and copy to my target folder?
My target folder is C:\Program Files\Java
If it isn't, then which file am I to rename as javacc.jar?

Directory of C:\Users\Babatunde\Downloads\javacc-javacc-7.0.9\javacc-javacc-7.0
.9

C:\Users\Babatunde>cd downloads

C:\Users\Babatunde\Downloads>cd javacc-javacc-7.0.9

C:\Users\Babatunde\Downloads\javacc-javacc-7.0.9>cd javacc-javacc-7.0.9

C:\Users\Babatunde\Downloads\javacc-javacc-7.0.9\javacc-javacc-7.0.9>dir
Volume in drive C is Windows8_OS

Directory of C:\Users\Babatunde\Downloads\javacc-javacc-7.0.9\javacc-javacc-7.0
.9

10/16/2020 04:47 AM DIR .
10/16/2020 04:47 AM DIR ..
10/16/2020 04:46 AM 662 .editorconfig
10/16/2020 04:46 AM 410 .gitattributes
10/16/2020 04:46 AM DIR .github
10/16/2020 04:46 AM 668 .gitignore
10/16/2020 04:46 AM 86 .travis.yml
10/16/2020 04:46 AM DIR bootstrap
10/16/2020 04:46 AM 25 build.cmd
10/16/2020 04:46 AM 28,653 build.xml
10/16/2020 04:46 AM 45 contributors
10/16/2020 04:47 AM DIR docs
10/16/2020 04:47 AM DIR examples
10/16/2020 04:47 AM DIR grammars
10/16/2020 04:46 AM 0 head
10/16/2020 04:47 AM DIR lib
10/16/2020 04:46 AM 1,536 LICENSE
10/16/2020 04:46 AM 2,274 makedist
10/16/2020 04:46 AM 551 make_bundle.cmd
10/16/2020 04:46 AM 533 make_bundle.sh
10/16/2020 04:46 AM 22,817 NfaStateTest.java
10/16/2020 04:46 AM 27,177 pom.xml
10/16/2020 04:46 AM 19,317 README.md
10/16/2020 04:47 AM DIR rulesets
10/16/2020 04:47 AM DIR scripts
10/16/2020 04:47 AM DIR src
10/16/2020 04:47 AM DIR test
15 File(s) 104,754 bytes
12 Dir(s) 51,929,886,720 bytes free

C:\Users\Babatunde\Downloads\javacc-javacc-7.0.9\javacc-javacc-7.0.9>

Is it possible for you to use Team Viewer to connect to my laptop and look through to check? I really need to get it working asap, I'm running late for an assignment submission. Thanks.

That's what I did. I moved the 7.0.9.jar the target folder and I renamed as javacc.jar but it didn't work.

No, it's not working.

This is the directory when I downloaded it - C:\Users\Babatunde\Downloads\javacc-javacc-7.0.9.zip
But unzipped it and moved it to my target directory - C:\Program Files\Java
And this is the path to the script directory that I added to my system variable path - C:\Program Files\Java\javacc.jar\scripts
Also notice that I have renamed the javacc-7.0.9 to javacc.jar in my target directory and it's still not working. I did all of these before asking the question on code project. Thank you.

Please could explain what you mean by "....the same level as the scripts directory."?

@Richard MacCutchan, the command I used is javacc.

@Richard MacCutchan, the command I used in my console is javacc

@Sandeep Mewara, the command that I used in my console is javacc
Yes, that's the same link that I shared.
I followed the instructions that is stated above, i added the scripts/ directory in the Javacc installation to my path. Thank you.

@Sandeep Mewara, I've done all what you mentioned. I unzipped the file, copied it to the directory where my jdk and jre are, I also copied the path to the script's directory path and added it to my system variable path. That's why its not showing "javacc is not recognized as an internal or external command". Also, there isn't any bin folder in this javacc version and after doing all that I mentioned above I'm still getting the error - Could not find or load main class.

Okay, noted. Thank you.

Okay, thanks a lot.

oh, the question on leetcode asked that we return an int array with the indices but i wanted to see the output(indices) that's why i added the print statement and called twoSum method from the main method.

@Richard MacCutchan, thanks.
The call to twoSum method was to print out the indices - System.out.println("fisrtIndex is " + i + " secondIndex is " + j); but i get your point, thanks for your time.

@Garth please could you clarify, if tmpNums is the address for the new array object in memory, is the address (tmpNums) assigned automatically by JVM? Thanks for your time.

@Garth, thanks for your answer, very clear, thank you. But what would be the reference to the new array in memory?

okay, noted with thanks.

@phil.o thanks for your comment. When i asked this question i was thinking that there might be person(s) here who might be familiar with "interfacing with stock prices" and i was hoping the person(s) might say.... looking at this code structure for this task you need to 1. Override method XYZ 2. Make the ratio work with math.random 3. Call the method ABC from the main etc. Sorry if i have offended anyone with this question, as i stated before, i don't do python, i do java. I have received answers to my questions before on this platform and am sure i would get more answers in future, thanks, no hard feelings.

Kindly help me update the client.py code above to achieve the above task, thanks.

Thanks.

Seen, thanks.

@OriginalGriff, wow, thanks a lot. I wouldn't tell him that, lol. Thank you.

Okay, will do. Thanks

Hello everyone, please don't be offended by my question(s). @OriginalGriff, @Maciej, i get it that it's the value at that index that a negative sign would be added to but for the 2nd, 3rd, 4th and 5th iterations the first part of the if statement should fail, how then would the values at those indexes be turned to negative? Please show me what i am missing.
2nd iteration in the first for loop -
int x = Math.abs(arr[9])
if(9 - 1 < 5 && arr[9 - 1] > 0)
the first condition should fail, how would that value be turned to negative?
Sorry for asking my stupid question, please help me. Many thanks.

Thanks.

Thanks.

@Maciej, i understand everything in the comments. My issue is testing the the first for loop to see how each iteration works. I am having problem with the second iteration. Thanks.